Accessory Valves
Pilot Operated Check Valve
4X .28
K
INLET PORT G
COUNTERBORE TYPE 70-3317-70
D
L M
A
E
C
F
.28
L M
2.47
2.75
3.62
OUTLET PORT G
B
J
Pilot Operated Check Valve n Cartridge and Manifold Mount versions. n Sealed pilot piston eliminates cross circuit leakage. n 5:1 Ratio of Pilot to Check pressure for release. n Unclamp device sequencer manages single circuit unclamp timing. n Flows up to 1.5 gal/min at 5,000 psi maximum pressure.
2.30
1.39
.49
SAE 2 PILOT PORT
MANIFOLD OUTLET PORT H
MANIFOLD PILOT PORT H
MANIFOLD INLET PORT H
Assembly Dimensions Model No. Mounting Style A B C D E F G H J
ILS703305 REV B
K L M 70-3311-13 Manifold/SAE 2.00 1.63 1.00 1.66 1.56 .34 SAE 6 SAE 2 Plug 1.06 1.13 .28 .44 70-3317-70 Manifold Only 1.75 1.50 .88 1.53 1.44 .22 N/A N/A .94 N/A .28 .44
L-4
M-4
MOUNTING DIMENSION FOR PILOT CHECK VALVE P/N 70-3311-13 AND 70-3317-70
For proper sealing, mating surface must be flat to 0.003 in. with a maximum 63 µ in. R a surface finish.
2.187
1.981
1.075
.169
.130 .090 3 PLACES FOR MANIFOLD PORTING
.657
.562
1.313
4X 1/4" MOUNTING HOLES THREAD .380 MINIMUM THREAD DEPTH
PILOT PORT
INLET PORT
ILS703307 REV C
OUTLET PORT
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